What does requirements analysis actually do? This guide explains what a requirement is, where requirements come from (users, business, competitors), how requirements differ from features and solutions, and the full process.
What do product managers actually do? This guide covers their responsibilities, the four stages of the product lifecycle, the three core documents (PRD, roadmap, backlog), and how product relates to project, engineering, and operations.
A PRD is the hub that connects product goals to engineering delivery. Applying ProductPlan's approach, this guide explains the PRD vs. MRD distinction, the modules a PRD should include, and the full drafting-to-review process.
A Mind the Product essay argues that in the AI era the PRD as a static document can no longer do the work of a spec, and that a golden evaluation dataset is replacing it as a runnable definition of "good."